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# Lesson 2.1 Key Terms

Term | Definition | Example |
---|---|---|

Distributive Property | Full name: distributive property of multiplication over addition. The property that allows us to distribute ("multiply through") an AND across several OR functions. For example, a(b+c)=ab+ac. | I used the distributive property to correctly multiply. |

Least Significant Bit (LSB) | The rightmost bit of a binary number. This bit has the number's smallest positional multiplier. | In 10111, the least significant bit is the far right 1. |

Logic Circuit | Any circuit that behaves according to a set of logic rules. | A 74LS02 is a logic gate that can be used in the circuit. |

Logic Diagram | A diagram, similar to a schematic, showing the connection of logic gates. | We use the logic diagram to correctly place the wires for the circuit to work. |

Maxterm | A sum term in a Boolean expression where all possible variables appear once in true or complement form. | The maxterm is when all variables are 1 |

Minterm | A product term in a Boolean expression where all possible variables appear once in true or complement form. | The minterm is when all variables are 0 |

Most Significant Bit (MSB) | (MSB) The leftmost bit in a binary number. This bit has the number's largest positional multiplier. | For example in the binary number 0111, the most significant bit is 0. |

Product-of-Sums (POS) | A type of Boolean expression where several sum terms are multiplied (AND'ed) together. | 1*0=0 |

Product Term | A term in a Boolean expression where one or more true or complement variables are AND'ed. | A 1 = 1 that is product term |

Sum-of-Products (SOP) | A type of Boolean expression where several product terms are summed (OR'ed) together. | A whole circuit would hold a sum of products. |

Sum Term | A term in a Boolean expression where one or more true or complement variables are OR'ed. | A 1 would = a 0 and that would be the sum term |

Truth Table | A list of all possible input values to a digital circuit, listed in ascending binary order, and the output response for each input combination. | In a truth table with three variables there will be nine outputs |

DeMorgan's Theorems | 1) Theorem stating that the complement of a sum (OR operation) equals the product (AND operation) of the complements, and 2) Theorem stating that the complement of a product (AND operation) equals the sum (OR operation) of the complements. | I used the DeMorgan theorem to make my circuit with AND and Or gates |

Created by:
EdwinJD